133 lines
2.0 KiB
Plaintext
133 lines
2.0 KiB
Plaintext
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10. ERROR CONDITIONS
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10. ERROR CONDITIONS
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10.1 Possible Actions on an Error
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When an error condition occurs, a Standard System may take one or
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more of the following actions:
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1. ignore and continue;
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2. display a message;
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3. execute a particular word;
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4. set interpret state and interpret a block;
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5. set interpret state and begin interpretation;
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6. other system dependent actions.
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See: "7.1 Documentation Requirements"
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10.2 General Error Conditions
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The following error conditions apply in many situations. These
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error conditions are listed below, but may occur at various times
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and with various words.
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1. input stream exhausted before encountering a required <name>
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or delimiting character;
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2. insufficient stack space or insufficient number of stack
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entries during text interpretation or compilation;
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3. a word not found and not a valid number, during text
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interpretation or compilation;
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4. compilation of incorrectly nested control structures;
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5. execution of words restricted to compilation only, when not
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in the compile state and while not compiling a colon
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definition;
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6. FORGETting within the system to a point that removes a word
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required for correct execution;
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7. insufficient space remaining in the dictionary;
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8. a stack parameter out of range, e.g., a negative number when
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a +n was specified in the glossary;
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21
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10. ERROR CONDITIONS
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9. correct mass storage read or write was not possible.
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